GitHub Copilot CLI v1.0.42

2026-05-06 - MCP server failure warning now suggests a directly runnable /mcp show command when the server name contains whitespace - MCP server failure warnings include stderr output to help diagn...

2026-05-06 - MCP server failure warning now suggests a directly runnable /mcp show command when the server name contains whitespace - MCP server failure warnings include stderr output to help diagnose connection errors - Add -C flag to change working directory before starting, similar to git -C - Exit message resume command shows session ID instead of auto-generated name when session has not been renamed - Remote session export now supports non-GitHub repositories and repo-less directories - Resuming a session no longer shows a false "session in use" warning after choosing "Go back" - Enter key no longer gets permanently stuck after cancelling a request - Suppress the exit summary when the session has no user messages and no saved session to resume - CLI updates on Windows no longer fail with ENOENT when a transient EPERM occurs during package extraction - Add rubber-duck agent for GPT sessions, powered by Claude (available in /experimental)