Copilot Chat v0.41.2026031803: CLI & Agent Updates

TL;DR

• GitHub Copilot bumped to 1.0.6 with CLI session handling improvements
• New autoAttachReferences option for custom agent configs
• Fixed duplicate semantic search results from git worktrees and Copilot CLI link handling

New

• autoAttachReferences option — Custom agent configurations can now auto-attach references without manual setup
• ATIF trajectory export — Programmatic export with agentOnly filtering for debugging and evaluation workflows
• Extended thinking experiment flag — Force extended thinking on adaptive models for testing
• ChatCustomAgentsService — New service integrated with CopilotCLI agents for better agent management
• Smarter NES rebase — Inline suggestions now rebase intelligently when user input aligns with suggestions

Fixed

• Duplicate semantic search results — Git worktrees no longer produce duplicate results in search
• Copilot CLI link handling — Fixed links with multiple sessions across single and multiple terminals
• Ghost request filtering — 'Hide Ghost Requests' now properly filters ghost prompt groups
• NES debounce and language context — Cancellation tokens now properly honored in debounce and context fetch operations
• Pending commit handling — Worktree changes in chat sessions now handled correctly
• Server response handling — NES no longer errors when server response contains no choices

Changed

• CLI session commits — Refactored to ensure commits happen only on the last request
• Update branch action removed — Temporarily disabled in Sessions for stability
• MCP support disabled — Copilot CLI no longer supports MCP in this release
• Claude model visibility — Models not eligible for model picker are now hidden
• System prompt overrides — Static overrides for system prompts and tool descriptions now available for debugging/evals

Update with: npm install -g @github/copilot-cli@latest or upgrade Copilot Chat extension in VS Code.

Source: Copilot Chat