GitHub Copilot CLI v0.0.343

GitHub Copilot CLI v0.0.343 was released on .

Summary

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: --add...

Release Context

  • This was the 16th GitHub Copilot CLI release of 2025 tracked by Havoptic.
  • It shipped 1 day after GitHub Copilot CLI v0.0.342 (October 16, 2025).

Shipped around the same time

Within 3 days of this release, other AI coding tools also shipped:

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Release Notes

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 https://github.com/github/copilot-cli/issues/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 https://github.com/github/copilot-cli/issues/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!

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