1.0.18

2026-04-04

• New Critic agent automatically reviews plans and complex implementations using a complementary model to catch errors early (available in experimental mode for Claude models)
• Session resume picker correctly groups sessions by branch and repository on first use
• preToolUse hook permissionDecision 'allow' now suppresses the tool approval prompt
• Add notification hook event that fires asynchronously on shell completion, permission prompts, elicitation dialogs, and agent completion

1.0.17

2026-04-03

• Built-in skills are now included with the CLI, starting with a guide for customizing Copilot cloud agent's environment
• MCP OAuth flows now support HTTPS redirect URIs via a self-signed certificate fallback, improving compatibility with OAuth providers that require HTTPS (e.g., Slack)
• /resume session picker loads significantly faster, especially with large session histories

1.0.16

2026-04-02

• SQL prompt tags no longer appear when sql tool is excluded via excludedTools or availableTools
• MCP tool calls display tool name and parameter summary in the timeline
• MCP server reconnects correctly with valid authentication when the working directory changes
• Add PermissionRequest hook to allow scripts to programmatically approve or deny tool permission requests
• Remove deprecated marketplaces repository setting (use extraKnownMarketplaces instead)
• MCP servers load correctly after login, user switch, and /mcp reload
• BYOK Anthropic provider now respects the configured maxOutputTokens limit
• Remove deprecated marketplaces repository setting (use extraKnownMarketplaces instead)

1.0.16-1

Pre-release 1.0.16-1

1.0.16-0

Fixed

• MCP servers load correctly after login, user switch, and /mcp reload
• BYOK Anthropic provider now respects the configured maxOutputTokens limit

Removed

• Remove deprecated marketplaces repository setting (use extraKnownMarketplaces instead)

1.0.15

2026-04-01

• Remove support for gpt-5.1-codex, gpt-5.1-codex-mini, and gpt-5.1-codex-max models
• Copilot mascot now blinks with subtle eye animations in interactive mode
• User switcher and /user list display accounts in alphabetical order
• Add mcp.config.list, mcp.config.add, mcp.config.update, and mcp.config.remove server RPCs for managing persistent MCP server configuration
• Add device code flow (RFC 8628) as a fallback for MCP OAuth in headless and CI environments
• Add /mcp auth command and re-authentication UI for MCP OAuth servers with account switching support
• Add postToolUseFailure hooks for tool errors and make postToolUse run only after successful tool calls
• Add /share html command to export sessions and research reports as self-contained interactive HTML files
• Autopilot no longer continues after pressing Escape or Ctrl+C to cancel
• Keystrokes typed while the CLI is loading are no longer lost
• Large tool output preview shows correct character count and up to 500 characters
• Add Home/End and Page Up/Page Down navigation to the diff viewer
• CLI exits immediately after a session ends instead of waiting up to 10 seconds
• Config settings askUser, autoUpdate, storeTokenPlaintext, logLevel, skillDirectories, and disabledSkills now use camelCase names (snake_case still accepted)
• Many settings keys now prefer camelCase names (snake_case names still work)
• Ctrl+D no longer queues a message; use Ctrl+Q or Ctrl+Enter to queue
• MCP servers that are slow to connect no longer block the agent from starting
• Pasting images from the Windows clipboard now works in WSL environments

1.0.15-2

Improved

• User switcher and /user list display accounts in alphabetical order

1.0.15-1

New

• Add mcp.config.list, mcp.config.add, mcp.config.update, and mcp.config.remove server RPCs for managing persistent MCP server configuration

Added

• Add device code flow (RFC 8628) as a fallback for MCP OAuth in headless and CI environments
• Add /mcp auth command and re-authentication UI for MCP OAuth servers with account switching support
• Add postToolUseFailure hooks for tool errors and make postToolUse run only after successful tool calls
• Add /share html command to export sessions and research reports as self-contained interactive HTML files

Improved

• Add Home/End and Page Up/Page Down navigation to the diff viewer
• CLI exits immediately after a session ends instead of waiting up to 10 seconds
• Config settings askUser, autoUpdate, storeTokenPlaintext, logLevel, skillDirectories, and disabledSkills now use camelCase names (snake_case still accepted)
• Many settings keys now prefer camelCase names (snake_case names still work)

Fixed

• Autopilot no longer continues after pressing Escape or Ctrl+C to cancel
• Keystrokes typed while the CLI is loading are no longer lost
• Large tool output preview shows correct character count and up to 500 characters

Removed

• Ctrl+D no longer queues a message; use Ctrl+Q or Ctrl+Enter to queue

1.0.15-0

Fixed

• MCP servers that are slow to connect no longer block the agent from starting
• Pasting images from the Windows clipboard now works in WSL environments

1.0.14

2026-03-31

• Images are correctly sent to Anthropic models when using BYOM
• Model picker selection correctly overrides the --model flag for the current session
• Terminal output no longer clears or jumps on error exit
• Shift+Enter inserts a newline in terminals with Kitty keyboard protocol support
• Show underlying error details when a Git marketplace URL fails to clone
• Temp file operations no longer trigger unnecessary permission prompts on macOS
• Allow SDK session participants to respond to elicitation requests via handlePendingElicitation API
• Shell processes are cleaned up properly when a session ends
• SDK exit_plan_mode.requested event is now always emitted, regardless of whether a direct callback is configured
• MCP servers using Microsoft Entra ID authentication no longer show the consent screen on every login
• Grep and glob search results return promptly when a timeout is reached
• Keystrokes are no longer dropped when typing quickly in elicitation dialogs
• Clipboard copy on native Windows no longer includes a stray U+FEFF character at the start of pasted text
• Fixed --config-dir being ignored when resuming a session, causing paths to silently fall back to ~/.copilot
• MCP servers blocked by allowlist policy are now hidden from /mcp show
• Reasoning effort setting now applies correctly when using Bring Your Own Model (BYOM) providers
• Ensure clear error messaging when using classic PATs
• grep tool handles large files and long lines without running out of memory
• MCP server OAuth authentication works when the CLI runs in ACP mode
• Split $BROWSER on spaces
• Pasted text is no longer corrupted when mouse support is active
• Uninstalling a marketplace plugin removes its cached data from disk
• Reduce CPU usage during streaming by optimizing spinner rendering and task polling
• Reduce CLI startup time by running terminal detection, auth, and git operations in parallel
• MCP registry lookups are more reliable with automatic retries and request timeouts
• CLI starts faster due to V8 compile cache reducing parse and compile time on repeated invocations
• Remove support for gemini-3-pro-preview model