Copilot Chat v0.40.2026031201: Router & CLI Updates
Copilot Chat v0.40.2026031201 adds router control parameters, improves inline chat exit behavior, and refines CLI handling. Dependency updates included.
TL;DR
- Router decision API gains sticky threshold and override controls
- Inline chat exit behavior improved
- Anthropic message caching and CLI exit handling refined
New
- Router sticky_threshold and sticky_override — New parameters for router decision API to control model stickiness and override behavior
- Resolved model for events — Events now track which model was actually resolved and used
- Auto-switch suggestion context — Enhanced context for automatic model switching suggestions
Improved
- Inline chat exit — Better handling when exiting inline chat sessions
- CLI exit plan mode — Updated exit plan mode handling in Copilot CLI for cleaner termination
- Anthropic cache control — Updated cache control headers for Anthropic messages tools
- Chat debug logging — Debug file logging now gated behind experimental flag with telemetry tracking
- Base branch protection storage — Background process now stores base branch protection state
Dependencies
- Bumped hono from 4.12.5 to 4.12.7
- Bumped tar from 7.5.8 to 7.5.11
Update via: code --install-extension GitHub.Copilot-Chat or check for updates in VS Code Extensions.
Source: Copilot Chat
