Release 0.0.343 · github/copilot-cli

0.0.343 - 2025-10-16

Added new model:
Run slash model to equip
Haiku 4.5.

Added a flag to augment MCP server configuration to temporarily add or override server configuration per session: --additional-mcp-config (fixes #288)
- You can pass MCP server configuration in two ways:
  - Inline JSON: copilot --additional-mcp-config '{"mcpServers": {"my-tool": {...}}}'
  - From a file (prefix with @): copilot --additional-mcp-config @/path/to/config.json
- You can also pass the flag multiple times (later values override earlier ones): copilot --additional-mcp-config @base.json --additional-mcp-config @overrides.json
Improved our prompts to ensure the agent uses Windows-style paths on Windows (fixes #261)
Added a prompt for users to run /terminal-setup if needed to enable multi-line input
Various visual improvements:
- Added a shimmer effect to the "Thinking..." indicator
- Removed the box around user messages in the timeline
- Increased the contrast of removed intraline highlights in diffs
- Allow cycling through slash commands (from the bottom of the list back to the top)
- Aligned permission/confirmation prompts to ensure all use the same visual style

Run npm install -g @github/copilot@latest to update!